INTRODUCTION
A seed is a fertilized ovule that contains an embryo and transforms it into a new plant through the process of germination. Seeds remain inactive until conditions are right for germination. All seeds need water, oxygen, and proper temperature in order to germinate. However, some seeds require full light or darkness to germinate. According to Holm (1996) seeds have chemical inhibitors that prevent germination. A seed will not grow unless those inhibitors are destroyed by things like temperature changes, moisture, and sunlight. These conditions combine in infinite ways, making each plant's germination needs different. The first sign of germination is when the seed absorbs the water. Water and oxygen are taken in through the seed coat causing the embryo's cells to enlarge. The seed coat breaks open and a root emerges first, followed by the shoot or plumule that contains the leaves and stem (Campbell 2004).
We performed an experiment on wheat seeds to examine how the......
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